Lecos
Explore our high-end glass dropper bottles and jars engineered for maximum stability, aesthetics, and user experience.
Lecos Glass has been a pioneer in the premium glass packaging industry for over 10 years, offering state-of-the-art wholesale glass bottles and jars designed for cosmetics, high-concentration hair serums, luxury perfumes, personal care oils, and customized candle jars. Our core strength lies in our ability to design and deliver bespoken glass packaging structures tailored to international brands’ exact formula compatibility criteria.
As a global enterprise, we have created an expansive collection of glass bottles, jars, and closure systems. Our comprehensive line of premium packaging includes:
Why international cosmetics conglomerates trust Chinese manufacturing clusters for their critical serum dropper supplies.
China boasts the world's most integrated industrial cosmetics packaging ecosystems. From raw silica mining to advanced soda-lime and borosilicate formulation, and matching dropper collar assembly factories, the entire value chain is located within a 50km radius. This geographic concentration drastically reduces internal logistics times and optimizes supply chain agility.
By leveraging automated IS (Individual Section) molding machinery, laser-controlled surface inspection, and thermal stress test ovens, Chinese glass factories maintain defect rates under 150 PPM (Parts Per Million). Robotic vision inspection systems scan each bottle for dimensional accuracy, air bubbles, and structural micro-cracks before packing.
Leading Chinese manufacturers have implemented energy-efficient electric melting furnaces that utilize up to 50% PCR (Post-Consumer Recycled) glass cullets. This reduces carbon emissions by 25% during production, directly aligning with the sustainability targets of major global beauty brands while maintaining high clarity and packaging integrity.
To establish a commanding brand presence on store shelves, the physical aesthetic of a hair oil or facial serum bottle must convey quality. Lecos Glass provides full-suite deep processing customization facilities in China, enabling brands to move away from generic appearances:
Our operational framework guarantees that the physical container matches the rigorous requirements of your chemical formulations.
Rigorous raw material sourcing combined with 100% automated optoelectronic inspection guarantees zero critical leaks and perfect neck threads.
Optimized production runs and local integration of manufacturing inputs keep overhead down, allowing us to pass significant savings to B2B clients.
Dedicated international account managers assist you from early-stage blueprint design through regulatory compatibility testing and logistics tracking.
Adapting your product packaging to shift towards high-performance formulations and sustainable supply chain footprints.
The global hair care market is undergoing a structural shift. Consumers are increasingly treating scalp care with the same level of scientific scrutiny as facial skincare. Consequently, premium formulations—containing highly active botanical oils, peptides, rosemary extracts, and volatile silicones—require physical containment that resists photo-oxidation and volatile evaporation.
Our high-quality glass hair serum bottles are engineered to resolve these exact formulation challenges:
A reference table mapping specific product requirements to their optimal glass material and closures.
| Application Scenario | Optimal Container Type | Recommended Material Type | Key Barrier / Closure Requirements |
|---|---|---|---|
| High-Viscosity Hair Serums (Argan/Castor blends) | Slim 30ml Dropper Bottle | Type III Soda-Lime Glass | High-delivery pipettes with large orifice diameter, rubber bulbs resistant to lipid swelling. |
| Volatile Scalp Treatments (Peptides/Rosemary active oils) | 10ml-30ml Amber Glass Droppers | Amber Glass or Internal UV Spray Coating | Excellent light block. High hermetic sealing collars to prevent degradation of volatile compounds. |
| Luxury Hair Oils & Essences (Silicone/Squalane base) | Custom Oval/Square Heavy Base Bottles | Thick Base Flint Glass | Premium electroplated dropper collars, high-clarity optical glass to showcase formula transparency. |
| Travel/Sampling Retail Formats | 3ml-5ml Mini Dropper Bottles | Molded Light Glass | Leaking-free threaded fitments, custom PP caps with tamper-evident rings. |
| Intensive Hair & Scalp Masks | 100g-180g Glass Cosmetic Jars | Wide-Mouth Thick Wall Glass | PP liner insert, PE foam gaskets inside the black plastic cap to prevent product dry-out. |
We build our company on a foundation of deeply held values that steer our actions and shape our corporate culture.
Our company is built on a solid foundation of deeply held values that set us apart, steer our actions, and infuse every aspect of our corporate culture. These values are not just words; they are the principles that guide how we operate daily. Central to our business practices are our unwavering commitment to social responsibility, adherence to ethical standards, and steadfast support for universal human rights.
We are also dedicated to protecting the environment and making a positive impact in the communities where we live and work. We believe in fostering creativity and innovation, celebrating and embracing the richness of diversity, and treating our employees with the utmost respect and care, as if they were members of our own family. By upholding these values, we ensure that our company remains a responsible, ethical, and inspiring place to work.




Take a closer look at our machinery, automatic inspection lines, and raw material warehousing.




Illuminated by the high aesthetics and elegance of most famous luxury brands.
Helping modern brands succeed with high-end customized bottle developments.
Get professional answers regarding specifications, supply chains, custom molding, and quality compliance protocols.
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information. B2B volume-based discounts are available for contracts exceeding 50,000 units per item.
Yes, we require all international orders to have an ongoing minimum order quantity. For standard bottles in stock, the MOQ starts at 5,000 units. For custom moldings or specialized color sprays/electroplating runs, the MOQ is typically 10,000 to 20,000 units. If you are looking to resell but in much smaller quantities, please contact our team to discuss alternative options.
Yes, we can provide comprehensive B2B compliance documentation including Certificates of Analysis / Conformance (CoA/CoC), Heavy Metal Clearance reports, REACH/RoHS certification, FDA food-grade compliance documentation, marine cargo insurance certificates, and Certificates of Origin for tariff relief applications.
For custom prototype samples, the lead time is about 7 days. For mass production run, the lead time is 20-30 days after receiving the deposit payment and technical drawings sign-off. The lead times become effective when: (1) we have received your deposit, and (2) we have your final approval for your technical blueprints. If our standard timelines do not fit your product launch date, please contact our sales team to discuss priority scheduling.
You can make payments via telegraphic transfer (T/T), Western Union, or PayPal: Our standard business term is a 30% deposit in advance, with the remaining 70% balance payable against the copy of the Bill of Lading (B/L).
We stand behind the materials and workmanship of all our glass containers. Our commitment is to ensure you are satisfied with the final product. Regardless of standard warranty timelines, it is a core value of our company culture to actively resolve any quality or tolerance concerns quickly to reach a mutually satisfactory solution.
Yes. We pack our bottles in high-strength corrugated boxes utilizing internal modular dividers to prevent glass-on-glass friction. For heavy containers or large orders, we pack them on plastic pallets wrapped in thick shrink wrap. We also use specialized packaging layouts for hazardous or fragile materials. Please note that custom packing configurations may involve extra fees.
Shipping costs depend on the delivery option you choose. Air express is the fastest but also the most expensive method. For large volume orders, sea freight is typically the most cost-effective shipping option. We can provide precise freight rates once we know your order quantity, dimensions, and preferred delivery terms.
We carry out complete formula-to-package testing. Since modern hair oils and facial serums often contain active botanical oils, citrus extracts, and volatile silicones, we test rubber dropper bulbs (NBR, silicone, or NBR/PP blends) against your specific formula. This testing helps identify any issues with swelling, cracking, or chemical degradation before we begin mass production.
We work with standard GPI finishes, including 18/400, 18/410, 18/415, 20/400, and 24/400. Custom neck designs can also be configured to work with specialized push-button droppers, tamper-evident collars, or child-resistant (CR) caps, depending on the requirements of your target markets.
From mini dropper vials to heavy-base skincare jars, we provide reliable packaging options for every brand level.